<template>
<div class="app-container">
<h2 style="text-align: center;">发布新课程</h2>
<el-steps :active="3" process-status="wait" align-center style="margin-bottom: 40px;">
<el-step title="填写课程基本信息"/>
<el-step title="创建课程大纲"/>
<el-step title="发布课程"/>
</el-steps>
<div class="ccInfo">
<img :src="coursePublishVo.cover">
<div class="main">
<h2>{{ coursePublishVo.title }}</h2>
<p class="gray"><span>共{{ coursePublishVo.lessonNum }}课时</span></p>
<p><span>所属分类：{{ coursePublishVo.subjectLevelOne }} — {{coursePublishVo.subjectLevelTwo}}</span></p>
<p>课程讲师：{{ coursePublishVo.teacherName }}</p>
<h3 class="red">￥{{ coursePublishVo.price }}</h3>
</div>
</div>
<div>
<el-button @click="previous">返回修改</el-button>
<el-button :disabled="saveBtnDisabled" type="primary" @click="publish">发布课程</el-button>
</div>
</div>
</template>
<script>
import courseAPI from '@/api/edu/course'
export default {
  data() {
    return {
      saveBtnDisabled: false, // 保存按钮是否禁用
      courseId: '',
      coursePublishVo: {}
    }
  },
  created() {
     if(this.$route.params&&this.$route.params.id){
       this.courseId=this.$route.params.id;
       this.getcoursePublishVoInfo();
       this. saveBtnDisabled=false;
     }
  },
  methods: {
    previous() {
      this.$router.push({ path: '/course/chapter/'+this.courseId })
    },
    publish() {
      courseAPI.publishCourse(this.courseId)
      .then(response=>{
          this.$message({
            type: 'success',
            message: '发布成功！'
          })
      })
      .catch(err=>{
          this.$message({
            type: 'error',
            message: '发布失败！'
          })
      })
      this.$router.push({ path: '/course/list' })
    },
    getcoursePublishVoInfo(){
      courseAPI.getcoursePublishVoInfo(this.courseId)
      .then(response=>{
        this.coursePublishVo=response.data.coursePublishVo;
      })
      .catch(err=>{
        this.$message({
          type: 'error',
          message: '拉取信息失败！'
        })
      })
    }
  }
}
</script>
<style scoped>
  .ccInfo {
    background: #f5f5f5;
    padding: 20px;
    overflow: hidden;
    border: 1px dashed #DDD;
    margin-bottom: 40px;
    position: relative;
  }
  .ccInfo img {
    background: #d6d6d6;
    width: 500px;
    height: 278px;
    display: block;
    float: left;
    border: none;
  }
  .ccInfo .main {
    margin-left: 520px;
  }
  .ccInfo .main h2 {
    font-size: 28px;
    margin-bottom: 30px;
    line-height: 1;
    font-weight: normal;
  }
  .ccInfo .main p {
    margin-bottom: 10px;
    word-wrap: break-word;
    line-height: 24px;
    max-height: 48px;
    overflow: hidden;
  }
  .ccInfo .main p {
    margin-bottom: 10px;
    word-wrap: break-word;
    line-height: 24px;
    max-height: 48px;
    overflow: hidden;
  }
  .ccInfo .main h3 {
    left: 540px;
    bottom: 20px;
    line-height: 1;
    font-size: 28px;
    color: #d32f24;
    font-weight: normal;
    position: absolute;
  }
</style>